Quote Originally Posted by Quartz View Post
Those are character level feats, which everyone gets at every third level i.e. 21st, 24th, 27th, etc levels. The Sorceror gets bonus class level feats at 23rd, 26th, 29th, etc levels.

BTW if Xykon is 29th level he can still fit in 4 counts of Improved Spell Capacity (at 24th, 26th, 27th, and 29th levels), allowing him to Quicken a 9th level spell. Improved Metamagic is another option from level 27 onwards as that requires 30 ranks in Spellcraft, so he could have two counts of Improved Spell Capacity and two counts of Improved Metamagic, thus only requiring an 11th level slot for a Quickened 9th level spell.